What is Katherine O'Bar's NPI number?

Katherine O'Bar's National Provider Identifier (NPI) is 1023677028, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Katherine O'Bar's specialty?

Katherine O'Bar is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Katherine O'Bar located?

Katherine O'Bar's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011.

What is Katherine O'Bar's phone number?

The practice phone number listed in the NPPES registry for Katherine O'Bar is (503) 494-8307.

Does Katherine O'Bar accept Medicare?

Katherine O'Bar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Katherine O'Bar's NPI active?

Yes — Katherine O'Bar's NPI (1023677028) is active in the NPPES registry as of the last update on 2025-01-08.

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Katherine O'Bar, RD

NPI 1023677028 · Registered Dietitian · Portland, OR

Katherine O'Bar, RD is a Registered Dietitian provider in Portland, OR (NPI 1023677028).

Provider details

NPI number: 1023677028
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: RD
Sex: Female
Sole proprietor: No
License: 10233501 (OR)

Practice location

3181 Sw Sam Jackson Park Rd

Portland, OR 97239-3011

Phone: (503) 494-8307

Street-level locationGet directions

More OR providers

Mailing address

3181 Sw Sam Jackson Park Rd

Portland, OR 97239-3011

Specialties & taxonomies

Registered DietitianPrimary133V00000XLicense 10233501 (OR)
Dietary & Nutritional Service Providers
Metabolic Nutrition Registered Dietitian133VN1006X
Dietary & Nutritional Service Providers

Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(67/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
7 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2019-06-12
Last updated: 2025-01-08
Certified: 2025-01-08

Frequently asked questions

What is Katherine O'Bar's NPI number?: Katherine O'Bar's National Provider Identifier (NPI) is 1023677028, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Katherine O'Bar's specialty?: Katherine O'Bar is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
Where is Katherine O'Bar located?: Katherine O'Bar's practice location on file with NPPES is 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011.
What is Katherine O'Bar's phone number?: The practice phone number listed in the NPPES registry for Katherine O'Bar is (503) 494-8307.
Does Katherine O'Bar accept Medicare?: Katherine O'Bar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Katherine O'Bar's NPI active?: Yes — Katherine O'Bar's NPI (1023677028) is active in the NPPES registry as of the last update on 2025-01-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions